Struct getrandom::Error[][src]

pub struct Error(_);

A small and no_std compatible error type

The Error::raw_os_error() will indicate if the error is from the OS, and if so, which error code the OS gave the application. If such an error is encountered, please consult with your system documentation.

Internally this type is a NonZeroU32, with certain values reserved for certain purposes, see Error::INTERNAL_START and Error::CUSTOM_START.

If this crate’s "std" Cargo feature is enabled, then:

Implementations

impl Error[src]

pub const UNSUPPORTED: Error[src]

This target/platform is not supported by getrandom.

pub const ERRNO_NOT_POSITIVE: Error[src]

The platform-specific errno returned a non-positive value.

pub const IOS_SEC_RANDOM: Error[src]

Call to iOS SecRandomCopyBytes failed.

pub const WINDOWS_RTL_GEN_RANDOM: Error[src]

Call to Windows RtlGenRandom failed.

pub const FAILED_RDRAND: Error[src]

RDRAND instruction failed due to a hardware issue.

pub const NO_RDRAND: Error[src]

RDRAND instruction unsupported on this target.

pub const WEB_CRYPTO: Error[src]

The browser does not have support for self.crypto.

pub const WEB_GET_RANDOM_VALUES: Error[src]

The browser does not have support for crypto.getRandomValues.

pub const VXWORKS_RAND_SECURE: Error[src]

On VxWorks, call to randSecure failed (random number generator is not yet initialized).

pub const NODE_CRYPTO: Error[src]

NodeJS does not have support for the crypto module.

pub const NODE_RANDOM_FILL_SYNC: Error[src]

NodeJS does not have support for crypto.randomFillSync.

pub const INTERNAL_START: u32[src]

Codes below this point represent OS Errors (i.e. positive i32 values). Codes at or above this point, but below Error::CUSTOM_START are reserved for use by the rand and getrandom crates.

pub const CUSTOM_START: u32[src]

Codes at or above this point can be used by users to define their own custom errors.

pub fn raw_os_error(self) -> Option<i32>[src]

Extract the raw OS error code (if this error came from the OS)

This method is identical to std::io::Error::raw_os_error(), except that it works in no_std contexts. If this method returns None, the error value can still be formatted via the Display implementation.

pub const fn code(self) -> NonZeroU32[src]

Extract the bare error code.

This code can either come from the underlying OS, or be a custom error. Use Error::raw_os_error() to disambiguate.

Trait Implementations

impl Clone for Error[src]

impl Copy for Error[src]

impl Debug for Error[src]

impl Display for Error[src]

impl Eq for Error[src]

impl Error for Error[src]

impl From<Error> for Error[src]

impl From<NonZeroU32> for Error[src]

impl PartialEq<Error> for Error[src]

impl StructuralEq for Error[src]

impl StructuralPartialEq for Error[src]

Auto Trait Implementations

impl RefUnwindSafe for Error

impl Send for Error

impl Sync for Error

impl Unpin for Error

impl UnwindSafe for Error

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
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impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.